Printer bumper



FIG. 1 is a perspective view of a printer bumper of the present design;

FIG. 2 is a bottom view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a front view thereof;

FIG. 7 is a rear view thereof; and,

FIG. 8 is a perspective view of the printer bumper in an assembly with a thermal transfer printer.

The broken lines in FIG. 8 are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a printer bumper, as shown and described. 